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Linux 7.4: record merge window, many AI-found fixes

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Linus Torvalds has released the first release candidate of Linux 7.4. The merge window was a record, with almost 20,000 commits. Torvalds says the main reason is fixes for bugs found by AI, and he sees it as a good sign: AI work is finally landing in normal development instead of flooding the stabilization phase.

By: Mikola Máté Patrik · · 2 min read

Linus Torvalds's Linux 7.4-rc1 announcement on the LKML archive
Image: LKML · Screenshot · Screenshot of the public Linux kernel mailing list archive · Source

What did Torvalds say?

In Sunday's announcement, Torvalds called this a "*BIG*" merge window. Almost 20,000 commits landed instead of the usual ~15,000. He called the reason "by now obvious": the flood of AI-triggered work.

Torvalds takes it as a good sign. He is much happier with AI fixes arriving in the merge window than showing up mainly as extra fixes during the -rc period. He hopes this means AI fixes are becoming part of "normal development" rather than a flood into the stabilization phase. He called that "a much healthier model", adding that we'll see how the -rcs look.

What it means in practice

  • The release is full of fixes for issues found by AI, and more and more patches are suggested by AI too, although they often get rewritten.
  • Otherwise it looks "fairly normal": about half drivers, the rest architecture, filesystems, tooling and core kernel.
  • A third of the diff is AMD GPU register offsets and bit masks. That's an old pattern, and Torvalds says to just ignore the noise.
  • Size may also reflect that many expect 7.4 to be the next LTS release.

Why it matters

The kernel is one of the most strictly maintained open source projects, so it's a good indicator of how AI fits into real development workflows. Earlier complaints were mostly about AI-found bug reports overwhelming maintainers. Torvalds now says the work is moving into the right phase. The real test is whether the coming -rc releases turn out calmer.

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